Yealink Unable to provision

[eds.pare]

Hi I am trying to auto provision some yealink phones. T33G

I was able to do it on another free network with internet access via SBC.

I have another setup.

3CX in AWS.
Connection Via SBC.
Network is behind a firewall FortiGate.
DNS and NTP is the FortiGate.
SBC and phones are on the same LAN, can Ping and Access web GUI.

Do mind. these yealink phones doesn't have access to internet. they can only connect to the local network which has the SBC.


But when i do the provision via the phone page. nothing happens.
Manual provisioning to the auto-provision page on the web ui also nothing happens.

Thanks

 

[Saqqara]

The phones need internet access , they need to access the 3cx fqdn on the https port - this is required for provisioning and the address book

 

[JohnS_3CX]

The SBC is only responsible for SIP and Audio, it does not carry the provisioning files to the phones and this is why you have the issue.

Internet access is still required by the phones as @Saqqara said (but FYI no port forwards are needed - just don't prevent them from accessing the internet).

You can cut access again after they are provisioned, but they will no longer be able to:

- reprovision
- update phone book
- download future firmware updates
- access NTP services (they exclusively look for pool.ntp.org via internet)

 

[eds.pare]

They don't need full access to internet right, as long as they can access the fqdn?

 

[JohnS_3CX]

And NTP services, like I mentioned above.